BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

GMAT Prep

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Tue Oct 19, 2010 6:38 am
Ya I remember the Boxed ones... Solved it here recently but could not find the post :(

[9] = 3*9 = 27 as 9 is odd we have to get 3m here
[6] = 1/2 * 6 = 3 as 6 is even so we have to get 1/2 m here

now [9]*[6] = 27 * 3 = 81

81 is exact value but what will be the boxed value?

The [odd] = 3*odd = 81

When we convert odd to Boxed odd we need to divide the value by 3
Thus 81 = 3*(81/3) = [27]

IMO D
If the problem is Easy Respect it, if the problem is tough Attack it
Top
Legendary Member
Posts: 1119
Joined: Fri May 07, 2010 8:50 am
Thanked: 29 times
Followed by:3 members

by diebeatsthegmat » Tue Oct 19, 2010 6:41 am
andre.heggli wrote:Has uploaded a picture so you can see the whole queston, think thisone is really hard.

Thnaks
André
Image
when m is odd (=9) ( now 9 is m and m is odd)
the first (9) =3*9=27 ( sorry, i cant drawn the square but i hope you get what i am typin)
the second (6)=1/2*6=3 ( now 6 is m and m is now even)
27*3=81
we see each answer choice... we saw that 27 is odd and 27*3=81
so the answer is (27)
hope it helps
Top
Junior | Next Rank: 30 Posts
Posts: 21
Joined: Fri Aug 06, 2010 1:30 am

by anhe123 » Tue Oct 19, 2010 6:47 am
shovan85 wrote:Ya I remember the Boxed ones... Solved it here recently but could not find the post :(

[9] = 3*9 = 27 as 9 is odd we have to get 3m here
[6] = 1/2 * 6 = 3 as 6 is even so we have to get 1/2 m here

now [9]*[6] = 27 * 3 = 81

81 is exact value but what will be the boxed value?

The [odd] = 3*odd = 81

When we convert odd to Boxed odd we need to divide the value by 3
Thus 81 = 3*(81/3) = [27]

IMO D
Thank you for your answer.

I just don't understand how I know to multiply 9 by 3 and 6 by 1/2. What I did wrong, is that I divided 9/3 and 6*2. Don't see the pattern of how to know if I should multiply or divide..
Top
User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Tue Oct 19, 2010 6:52 am
shovan85 wrote:
[9] = 3*9 = 27 as 9 is odd we have to get 3m here
What is the question asking? [9]*[6] =?

There are two conditions given in the Question and FIRST one is as follows:

When the m inside the box (i.e. [m]) is odd the you multiply 3 to the m.
We can write [m] = 3m when m is odd.

Now what is 9: odd or even?

Of course 9 is odd then we apply the Odd condition what the question has given us.

[9] = 3*9 = 27 .

Does this make sense? Yes or No let me know? If Yes the you can find out how [6] became 3.
If the problem is Easy Respect it, if the problem is tough Attack it
Top
Master | Next Rank: 500 Posts
Posts: 181
Joined: Sat Oct 16, 2010 1:57 pm
Thanked: 4 times

by N:Dure » Sat Oct 23, 2010 7:22 am
Dear Shovan,

I understand how to get to 81 but I don't get why we should divide it by 3 after? I got the answer 81... also what is the boxed value? Shouldn't the answer be 81 because we applied the rules the question provides to [9]x[6]?
Top
User avatar
Community Manager
Posts: 991
Joined: Thu Sep 23, 2010 6:19 am
Location: Bangalore, India
Thanked: 146 times
Followed by:24 members

by shovan85 » Sat Oct 23, 2010 7:29 am
N:Dure wrote:Dear Shovan,

I understand how to get to 81 but I don't get why we should divide it by 3 after? I got the answer 81... also what is the boxed value? Shouldn't the answer be 81 because we applied the rules the question provides to [9]x[6]?
Yes my dear friend you get 81 is absolutely correct. But see the option do you have 81 or boxed 81 [81].

If u take [81] then according to the rule the absolute value is 81*3 = 243.
But what is our absolute value of [9]*[6] = 81

So how will you get absolute 81? When you take boxed [27], which is equal to absolute 81.

Hope this helps :)
If the problem is Easy Respect it, if the problem is tough Attack it
Top
Master | Next Rank: 500 Posts
Posts: 181
Joined: Sat Oct 16, 2010 1:57 pm
Thanked: 4 times

by N:Dure » Sat Oct 23, 2010 8:28 am
Thanks Shovan for explaining! Now I need your help over here: https://www.beatthegmat.com/easy-questio ... 68824.html
Top
User avatar
Legendary Member
Posts: 866
Joined: Mon Aug 02, 2010 6:46 pm
Location: Gwalior, India
Thanked: 31 times

by goyalsau » Sat Oct 23, 2010 8:45 am
Thanks for posting such a Good question.
They have made a trap my putting value in [ ]
If they didn't put the [ ] answer must have been 81.

Thanks Guys,
Its good to be familiar with the traps of GMAC
Saurabh Goyal
[email protected]
-------------------------


EveryBody Wants to Win But Nobody wants to prepare for Win.
Top
Master | Next Rank: 500 Posts
Posts: 250
Joined: Thu Jan 07, 2010 2:21 am
Thanked: 10 times

by saurabhmahajan » Sat Oct 23, 2010 11:04 am
friends why do we need to reach to 81 ?

simply multiply 9*6= 54
m=54 ... thats even.
so m/2 = 54 / 2 =27
Thanks and regards,
Saurabh Mahajan

I can understand you not winning,but i will not forgive you for not trying.
Top
Post new topic Post Reply
• Page 1 of 1